Maybe you need to find a different therapist that's a better fit? It doesn't seem like she will be very helpful. Quitting drinking is an ongoing process and there may be slips along the way. Seems to me she should be helping you to analyze it all, and that you should feel comfortable telling her the good and the bad.
If you can try to stop thinking in terms of "good girl" and the reverse "bad girl" that might help you. First, because you're not "bad" if you slip. Human, yes, but you're dealing with a disease, it's not just a behavior issue. Second, because many of us like to let the bad one out to play-it's the rebel in us. Being "good" feels stifling and boring.